Mitsubishi Electric 800 Series Instruction Manual page 54

 Reset method for the protective functions
Reset the inverter by performing any of the following operations. Note that the accumulated heat value of the electronic thermal
relay function and the number of retries are cleared (erased) by resetting the inverter.
• Press the STOP/RESET key on the operation panel. (This operation is valid only when the protective function for a fault is
activated.)
• Switch OFF the power once, then switch it ON again.
• Turn ON the Reset (RES) signal for 0.1 second or more. (If the RES signal is kept ON, "Err" appears (blinks) to indicate
that the inverter is in a reset status.)
NOTE
• OFF status of the start signal must be confirmed before resetting the inverter fault. Resetting an inverter fault with the start
signal ON restarts the motor suddenly.
• The reset method can be restricted according to the setting of Pr.75 Reset selection/PU stop selection. (For details, refer
to the FR-E800 Instruction Manual (Function).)
 How to check the fault detail code
• The fault detail code can be checked by reading Pr.986 Display safety fault code.
• To read the code using FR Configurator2, refer to the FR Configurator2 Instruction Manual.
 List of fault detail codes
No.
1 to 37 System failure
38 to 40 Safety parameter fault
41 Safety parameter combination fault
44 to 46 System failure
47 CPU fault
49 SX1/SX2 terminal test pulse diagnosis
fault
54 SX1/SX2 terminal input mismatch fault
54
7. Protective Functions
Name
Contact your sales representative.
A fault is detected in the safety
parameter setting.
• A value other than "0" is set in
Pr.S023 SBC brake operation
frequency and "0 (initial value)"
is set in Pr.S001 Monitoring
speed selection.
• Although the SBC output (SBC)
signal is assigned to output
terminals, the Brake feedback
(SBCFB) signal is not assigned
to input terminals.
Contact your sales representative.
A CPU fault (E.CPU, E.6, or E.7)
occurred.
A fault is detected by the test pulse
diagnosis.
The input mismatch between
terminals SX1 and SX2 persists for
the time period set in Pr.S066 SX1/
SX2 terminal mismatch
permissible time or longer.
Description
• Set the safety parameter correctly.
• Perform safety parameter clear.
If the problem still persists after taking the
above measure, contact your sales
representative.
• When Pr.S023 ≠ "0", set Pr.S001 =
"1".
• When Pr.S055 SY1/SY2 terminal
function selection = "1", set Pr.S051
SX1/SX2 terminal function selection
= "6".
• Refer to the FR-E800 Instruction
Manual (Maintenance).
If the problem still persists after taking the
above measure, contact your sales
representative.
• Set Pr.S061 SX1/SX2 terminal
filtering time correctly.
If the problem still persists after taking the
above measure, contact your sales
representative.
Check the wiring for terminals SX1 and
SX2.
Corrective action